Art NFT Marketplace

Description

A decentralized application (dApp) is an application built on a decentralized network that combines a smart contract and a frontend user interface. On Ethereum, smart contracts are accessible and transparent – like open APIs – so your dApp can even include a smart contract that someone else has written.

This project demonstrates how to build decentralized applications (dApps) and decentralized storage for non-fungible token (NFT) contracts. We do this by building our (dApp) smart contract on the the ERC-721 Non-Fungible Token Standard defined in the Ethereum Improvement Proposal (EIP)–721.

We use the ERC-721 Non-Fungible Token Standard contract to demostrate how users can buy or sell artwork NFTs in a decentralized marketplace. Users are able to select their accounts and register new artwork tokens through a web interface. Users will also be able to display the tokens for their accounts so that they can display the artwork on the webpage.

Initial SetUp

Installing Required Tools

Ganace - Ganache is a tool that allows you to quickly set up a local blockchain, which you can use to test and develop smart contracts. Follow the instructions on the Ganache Download page to download and install this tool on your local machine.
Metamask - MetaMask is a digital wallet for the Ethereum blockchain. Follow the instructions on the MetaMask Download page to install MetaMask in your web browser.
Pinata (Create a Token) - Pinata is for storing and managing your NFT media . It uses the Interplanetary File System, or IPFS, to create content-addressable hashes of data. Follow the instructions on the Pinata page to create a token and start using Pinata

Other Requirements

Clone

Clone a copy of the repo:

git clone https://github.com/rdillens/Smart_Contracts.git

Change to the SDK's directory:

cd Smart_Contracts

Create virtual environment:

Create new environment in conde with depenencies:

conda create  --name SmartContracts_env python=3.7 --file requirements.txt

Or install the following packages:

pip install streamlit

pip install streamlit-pages

pip install python-dotenv

pip install web3

Getting Started

Step 1: Run Ganache

Choose Quickstart

Ganache provides a local development blockchain for our app.

Step 2: Open Remix

Step 3: Load contract file into Remix

Step 4: Compile Contract

Step 5: Copy Contract Address and Paste Into .env File

Step 6: Copy Ganache URI to .env file

The RPC URL needs to be needs to be added to WEB3_PROVIDER_URI property of the .env file.

The .env file WEB3_PROVIDER_URI containes the Ganache RPC URL to allow the WEB3 Provider to connect to our local block chain provided by Ganache.

PINATA_API_KEY= XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
PINATA_SECRET_API_KEY= XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
WEB3_PROVIDER_URI=http://127.0.0.1:7545
SMART_CONTRACT_ADDRESS= [Address of Deployed Contract]

Step 7: Run Streamlit App

streamlit run app.py

Contributors

Chafic Charafeddine
Remy Dillenseger
Gregory Douglas
Jose Medina

rdillens / smart_contracts Goto Github PK

smart_contracts's Introduction